27794907

素因数分解:

$3^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 60

約数和(自身を含む): 49658400

約数和(自身を除く): 21863493

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 141, 147, 149, 189, 329, 423, 441, 447, 567, 987, 1043, 1269, 1323, 1341, 2303, 2961, 3129, 3807, 3969, 4023, 6909, 7003, 7301, 8883, 9387, 12069, 20727, 21009, 21903, 26649, 28161, 49021, 62181, 63027, 65709, 84483, 147063, 186543, 189081, 197127, 343147, 441189, 567243, 591381, 1029441, 1323567, 3088323, 3970701, 9264969, 27794907]

約数ペア:

[(1, 27794907), (3, 9264969), (7, 3970701), (9, 3088323), (21, 1323567), (27, 1029441), (47, 591381), (49, 567243), (63, 441189), (81, 343147), (141, 197127), (147, 189081), (149, 186543), (189, 147063), (329, 84483), (423, 65709), (441, 63027), (447, 62181), (567, 49021), (987, 28161), (1043, 26649), (1269, 21903), (1323, 21009), (1341, 20727), (2303, 12069), (2961, 9387), (3129, 8883), (3807, 7301), (3969, 7003), (4023, 6909)]